Machine for molding concrete blocks.



10.894,744. A PATLNTLD JULY 2s, 190s.

. j y W. H. PHILLIPS.

4LLLWHINL FOR MOLDING GONGRLTL BLOCKS.

APPLICATION FILED JULY 29', 19o?. ,2 SHEETS-SHEET 1.

No. 894,744. l PA'I'BNTED JULY 2 8, 1908.

, Y W. H. PHILLIPS.

MACHINE FOR MOLDING'CONGRETE BLOCKS.

APLIOATION FILED JULY 29, 1907.

z SHEETS-SHEET@ L @Chaweng .UNITED STATES 'PATENT OFFICE.

WILLIAM n. PHILLIPsIoF COLUMBUS, OHIO.

.i MACHINE FOR? IVIOLDING-L CONCRETE lBLOCKS.

f Specicationof Letters Patent.

` Patented July 28, 1908.

Application :filed -Ju1y.29, .1907.. ,-Serial No. 386.049.

- provision of a device of this character conline x-:c of Fig. 3looking'toward .the rock` structed in such manner that `blocks ofvarying sizes and shapes maybe readily molded therein.

Further objects and advantages ofthe in'` vention will be set forth inthe-.detailed der scription which now follows.;

In the accompanyingdrawings: Figure 1` is a side elevation of aconcreteblockmachine constructed in accordance withy the inventlon, Fig. 2 1s acentralvertical section upon shaft, Fig. 3 is an end` elevationof-thamachine, Fig. 4 is a lan viewof1the machine with the pallet of t emold boxomitted, F ig. 5 is a detail sectional View of therear side ofthe mold box, Fig. 6 is a horizontal section. upon line a-a `of Fig. 2,and, Fig. 7- is a de tail view of a modified form of mold box.

Like numerals designate correspondingk parts in all of theligures ofthedrawings.

Referring to the drawings, the numerals 5 and 6 designate standardswhichserve to support a top plate 7-,said top plate and said standardforming the frame vof theumachine."

sequently the throw of the cross-head 10 mayy be regulated. The lowerends of the links 13 are connected to the ends of levers 15. Theselevers 15 are mounted upon `a rock shaft 16, to which movement may beimparted .by a handle 17. The plate 7 has a plurality of perforations 18and a plurality of slots 19 ormed therein for a pur ose Which will behereinafter set forth. T e mold box cornprises a rear wall 20 from whichperforated lugs 21 extend, end walls 22 and a front wall 23. The endWalls 22 'are pivoted to the rear Wall 20 at 24, while the front wall 23ispivotedtoone of the yend Walls -22 at 25. At its opposite end thefront wall 23 is provided with a notch 26 which receives a tenon 27 of.the other end wall 22.

A bolt 28 is pivoted -by `apin l291 between lugs 30 carried by one ofthe end walls-22. A nut 31 is threaded upon the outer end of this boltand is provided vwith a handle 32 by-which it may be rotated.y

The form-of the mold box illustrated in Fig. 7, is the same as thatillustrated in the `other `figures of the drawing and the same referencenumerals have been applied to like parts therein.

Stop `lugs 33-and 34 are carried upon one v end ofthe plate 7 and servea purpose which will be hereinafter set forth. When the sides ofthemoldbox are closed, a bottom for the mold .box is formed by a pallet 35,said pallet `having openings 36 formed therethrough for the passageofthe cores 12.

1 The; .operation ofthe device is as follows: The mold box is secured inposition upon the plate 7 by bolts 38 which pass through the openings 18and are threaded into the lugs 21. It is by these means that the rearwall 20 of themold box is secured in position, the end walls. and thefront wall being supported from this rear wall by means of the hinges 24`and 25. When. the walls are swung back into -the positiony illustratedin Fig. 4, the bolt 28 is l.swung into such position that it lies in aslot 39 formedin a lug 40 which is carried by the end of the front wall23. The nut 31 is `then rotatedtodraw all of the parts together,A.thisrotation of the nut A31 squaring or truing up the mold box. Thehandle 17 is then pulled over until it engages behind the lug 33 (seeFig. 2). This rocks the shaft 16 and throws the levers 15 to the fullline position illustrated in Fig. 3. This movement of the levers 15through the links 13 elevates the cross-head 10 and consequently liftsthe cores 12 until they project into the mold box,

`the tops of said cores when the lever lies in the position justdescribed, lying substantially level with the top of the mold box.'After the material of which the block is formed, has been tamped aroundthe cores, the handle 17 is disengaged from behind the lug 33 and throwntoward the left in, Fig. 3. This withdraws the cores from the mold boxafter which the nut 31 may be loosened and the front and end walls swungaway from the oldedblocks as illustrated in dotted lines in Anadjustable supporting plate 41 is car- .is rendered adjustable by beingslotted for the reception of screws 42which p ass through said slots andare threaded into the plate 7.

By referring to Fig. 2, it will be seen that the cores 12 are providedupon their lower faces with tenons 43 which enter recesses 44 of thecross-head. These cores are therefore removably mounted upon vthecross-head and may be readily removed and others substituted thereforwhen desired.

It is sometimes desirable to mold blocks of but half the usual height.When it is desired to do this, a mold box of the proper height issubstituted by removing the bolts 38 and placing the new box inposition. Cores of substantially half the height of the cores 12 arethen substituted for said cores and the handle 17 is thrown over to theposition illustrated in Fig. 3. This elevates the cores as hereinbeforedescribed. When it is desired to lower these half cores, however, thehandle 17 when shoved over to the left in Fig. 3, is only moved overuntil it engages the lug 34 instead of being permitted to move over pastsaid lug as in the previous case.

When it is desired to mold porch column blocks, the mold shown in Fig. 7is substituted for that shown in Fig. 4, the series of perforations 18formed in the plate 7 readily allowing this to be done. Theseperforations are spaced given distances apart. For instanceI the spacesbetween certain of the holes are one inch apart; between other rows ofholes the distance is two inches. By thus arranging these perforationsit is possible by selecting a mold box which will extend between givenrows of holes, to determine the size of the block to be molded withoutmeasuring. The slots 19 permit hooks to be inw seen that the machineherein shown and def scribed, is adapted to mold concrete blocks of anydesired size or shape by merely substituting the proper sized and shapedmold box and pallets. j

Vhile the elements shown and described are well adapted to serve thepurposes for which they are intended, it is tov be understood that theinvention is not limited to the precise construction set forth, butincludes within its purview such changes as may be made within the scopeof the appended claims.

. What I claim, is:

In a machine of the character described, the combination with asupporting frame, of a rock shaft journaled in said frame, a verticallymovable cross-head mounted in ways formed in said frame, arms rigidlysecured to the rock shaft, turn-buckle connections between the outerends of said arms and the cross-head, removable cores carried by thecross-head, a removable mold box supported upon the frame, one of thewalls of said mold box being hinged to and sup )orted by the first namedwalls, and a mem er longitudinally adjustable with relation to the frameand carried by said frame, said member having an upturned projection 41adapted to limit the swinging movement of the front wall of said moldbox.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM I-I` PHILLIPS.

Witnesses: L. CARL STOUGIITON,

A. L. PHELPs.

